Patent attributes
The life of a plurality of storage batteries as a whole is increased. A DC power supplying system includes power conditioners that supply generated power generated at power generators to a DC bus, storage batteries, storage batteries that have a superior cycle characteristic, bidirectional DC/DC converters that perform power conversion between generated power supplied to the DC bus and charging power of the storage batteries, bidirectional DC/DC converters that perform power conversion between generated power and charging power of the second storage batteries, DC/DC converters that supply the generated power and the charging power to load appliances, and an energy management system that is operable when an absolute value of a power difference between the generated power and the load power supplied to the load appliances is equal to or greater than a power threshold to operate the DC converters.
